I am having a problem importing sage modules into an instance of python 2.7. I succesfully untared the release binary tarball for 64-bit Ubuntu 10.04 ( http://boxen.math.washington.edu/sage/linux/64bit/sage-4.7.2-linux-64bit-ubuntu_10.04.3_lts-x86_64-Linux.tar.lzma ) into ~/sage. I can succesfully run sage with ./sage.
After opening the python console (python), I set the relevant environmental variables and system path:
import sys
import os
os.environ['LD_LIBRARY_PATH'] = '/home/jthetzel/sage/local/lib'
os.environ['SAGE_ROOT'] = '/home/jthetzel/sage'
sys.path.append("/home/jthetzel/sage/local/lib/python/site-packages")
However, the following:
from sage.all import *
Results in:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/jthetzel/sage/local/lib/python/site-packages/sage/all.py", line 63, in <module>
from sage.ext.c_lib import _init_csage, sig_on_count
ImportError: libcsage.so: cannot open shared object file: No such file or directory
The same occurs when I try different system paths, such as /home/jthetzel/sage/local/lib or /home/jthetzel/sage .
Trying locate libcsage.so finds:
/home/jthetzel/sage/devel/sage-main/c_lib/libcsage.so
/home/jthetzel/sage/local/lib/libcsage.so
I have read elsewhere that ./sage -b might fix this error, but it does not in my case.
Could anyone help shed light on why libcsage.so can not be found? I am trying to import the sage modules into my usual python as opposed to Sage's python (./sage -python) because I am eventually trying to access Sage through R's Jython interface, rJython. I appreciate any guidance.
